CVE-2020-27661: Divide by Zero
First published: Thu Oct 22 2020(Updated: )
A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=5.1.1 |
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Reference Links
- https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1890654
- https://access.redhat.com/security/cve/cve-2020-27661
- https://bugzilla.redhat.com/show_bug.cgi?id=1890653
- https://git.qemu.org/?p=qemu.git;a=commit;h=bea2a9e3e00b275dc40cfa09c760c715b8753e03
- https://security.netapp.com/advisory/ntap-20210720-0010/
- https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1770368.html
- https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03
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- version/qemu kvm/5.1.1